Series 8 C300 Controller User's Guide
Honeywell
9. C300 Controller Maintenance
9.3. C300 Controller module and IOTA replacement
In Control Builder, perform a 'Load with Contents' to the controller.
To replace a redundant or secondary controller module, perform the following steps.
CAUTION
This procedure can be performed while on-process only if the module to be
replaced is in the secondary role.
We recommend that you proceed with extreme caution whenever replacing
any component in a control system. Be sure the system is offline or in a safe
operating mode.
Component replacements may also require corresponding changes in the
control strategy configuration through Control Builder, as well as downloading
appropriate data to the replaced component.
In Control Builder, open the primary C300 FB and select the Redundancy
tab. Click the Disable Synchronization button to the auto-sync parameter to
"Disabled."
Perform steps 1 through 5 of the procedure to replace a non-redundant
controller module.
Load firmware which is the same version as was running in the old controller.
The new backup controller will boot to ALIVE or BKUP. If the application
image does not match the primary controller, it will be unsynchronized.
From either the primary or secondary C300 FB Redundancy tab, click the
Enable Synchronization button to initiate synchronization and allow auto-
synchronization.
The controller will now display a synchronized redundancy state.
To replace a non-redundant controller IOTA board, perform the following steps.
CAUTION
This procedure can only be performed while off process.
We recommend that you proceed with extrem e caution whenever replacing
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